Since the latest beta I see a new animation for loading picture files, which I want to open.
I opened different jpg or png files with big and small size from browser view and sometimes I saw this animation and sometimes not.
First I thought I will see it only at bigger picture files. But I saw it with small files, too. It is very irregular.

I usually open the browser window and go to one of my picture directories.
Then I open one picture file. After that I use the arrow keys (Screenshot) to go to the next or previews picture.
In my directory are big CR2 files (RAW pictures) from a canon digital camera and the loading time is longer.
The active picture immediately will be removed and the loading animation starts.

It will be nicer if the active picture stay during the loading animation until it is finished.
After that XnViewMP can show the new picture.

It is very restless and disturbing to the eyes, because I sometimes switch very fast through my picture directory to find the best picture of a photo opportunity.